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    Stealth Drive Systems and Prices

    Thanks for some information! Yes, indeed some of those can't be retrofit. But that is actually okay in my perspective. Just trying to collate some information on these "stealth" systems, so I am happy to hear about systems which do require a dedicated frame.
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    Stealth Drive Systems and Prices

    Hello! I am trying to determine the variety of stealth drive systems out there. Specifically mid-mount drive which assists in turning the cranks. I know Vivax is one, starting at around 2700Euro. Fazua E-Vation is another, but I struggle to find pricing. Does anyone know? And if you have any...